This was happening to me a lot lately. I don't bulk download either. And also I kept seeing "a new version available" all the time on top right. I click it and it seemingly installs successfully (because no errors) but in fact, nothing happens. I think the auto-installer helper is running in the background and fetching a lot of data repeatedly. Then failing and then fetching again. I installed it manually and I think it's gone now.
I think I was stuck on 25.5.1 if I remember correctly and now upgraded to the latest (25.6.2)